Technical parameters&colon;1&period; Power supply DC4&period;5V-6&period;5V&comma; 4 standard 1&period;5V AA alkaline batteries&semi;2&period; Battery life Over 15000 times normal unlocking&semi;3&period; Static current < 20 uA&semi;4&period; Dynamic current <150 mA&semi;5&period; Storage temperature -20 - &plus; 85&semi;6&period; Storage humidity 10-98&percnt; RH&semi;7&period; Working temperature 0 - &plus; 60&semi;8&period; Working humidity 15-95&percnt; RH&semi;9&period; Card reading distance 0-5cm&semi;10&period; Reading & writing time <0&period;5s&semi;11&period; Date keeping Over 10 years&semi;12&period; Applicable chip Mifare-1 card&lpar;13&period;56MHz&rpar;&semi;13&period; Reading & writing wayNon-touched closer induction&semi;14&period; Opening time Turning the handle one time to open the door in valid&comma; if dont open the door&comma; itWill be locked automatically in 6s&semi;15&period; Reliable opening The success rate of opening is 100&percnt; in normal punching&semi;16&period; Low voltage alarm When voltage lower than 4&period;8V&comma; there has acousto-optic warning but itStill can be opened 100 times&semi;17&period; Mechanical key Equipped with spare mechanical key make sure the door unlocking inEmergency&semi; It can be made into one key for one door or one key for all doors&semi;18&period; Installation size Make sure the door thickness between 38 and 80 mm &lpar;Please markSpecially if over 55mm&rpar;&period; 45mm is the best thickness&period; If the door surface is decorated&comma; theDistance between the decorative edge and edge of door must be over 130mm&period;